Combination slip-socket.



w. s. BRUMMETT as? TL. s. METZ. COMBINATION SLIP SOCKET. APPLIGATION rLsn rnxfi dsls.

Patented Dec. 16, 1913.

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Specification oflpetters Patent.

Patented nee. 1c, 1913.

Application filed February 6, 1913. Serial No. 7%,506f

To all whom it may concern."

Be it known that we, WILLIAM S.'lBnUM- METT and LAMECH S. Mnrz, citizensof the United 'States, residing at-Ooalinga, in the county of Fresno andState of California have invented certain new and useful III}?provements in Combination Slip-Sockets, of which the following is aspecification.

The present invention relates to certain new and useful improvements infishing tools :such as are commonly employed in the drilling of Artesianand oil wells for the recovery of broken drill rods or other tools whichmay have become wedged or firmly lodged in the well, the object of theinven tion being to provide a device of this character which embodiesnovel features of construction whereby it will securely grip the brokendrill rod or other tool for the purpose of pulling the same out of thewell, and also whereby the broken drill rod or other tool can be readilyreleased should itbe so firmly lodged within the well as to position;

resist the attempts to pull the same out of position.

A further object of the invention is to provide a fishing tool or drillrod grab which is comparatively simple and l1]X pensive in itsconstruction which can be used in the conventional manner, which willsecurely grip the broken drill rod or other tool, and which can bereadily manipulated to releasethe broken drill rod should such becomedesirable.

With these and otherobjects in View the invention consists in certainnovel combinations and arrangements of the partsas will more fullyappear as the description proceeds, the novel features thereot beingpointed out in the appended claims. a

For a full understanding of the invention, reference is to be had to thefollowing description and accompanying drawing, in which z- Figure 1 isn a vertical sectional View through a drill rod grab constructed inaccordance with'the invention, the tongs being shown in side elevationin the position assumed when gripping the tool which it is desired towithdraw from the well. Fig 2 is aside elevation of the tool, showingthe position-assumed by the parts when the tongs have been moved into aninoperative Fig. dis a transverse sectional view on the line 3-3 ofFig' 1. Fig. t is a' the plug 8.

similar View on the line 4-lof Fig. 1 .and Fig. 5 is an enlarged detailView of the detent for holding the tongs in'an inoperatlve position.

Corresponding and like partslare referred to in the followingdescription and indip ited in all the views of the drawing by thesalmereference (bllnrnntflmg Specifically describing the present embodimentof the invention, the numeral 1 designates the socket member which ispro vided with the usual opening 2 extending 4 upwardly into the samefrom the lower end thereof, the upper end of the socket member beingprovided with the usual threaded stud 3.by means of whichthe device canbe readily attached to the drill rods 4. A pair oflongitudinalslots 5which communicate with the opening- 3 are formed in opposite sides ofthe socket member 1 to admit of access being readily had to the tongsfor releasing the same after they have been moved into an inoperativeposition. The lower end of the opening 2 is formed with a flared mouth 6for directing a tool or broken drill rod into the socket, while theinterior of the opening 2 isprovided toward the lower end thereof withthe downwardly converging inclined side walls '7.

The upper end of the socketmember 1 is provided at a point abovethe-opening :2 with a transverse opening within; which a plug 8 isremovably'inserted. A guide rod 9 which projects longitudinally into thesocket opening 2 from the upper end or base thereof has its upperextremity threaded within For the purpose of locking both the plug 8 andthe guide rod!) rigidly in position so as to avoid any possibility oftheparts working-loose while in an oil well, a transverse pin 10 which isdisposed at right angles to the plug 8 is inserted within the socketmember 1, the said pin passing through both the plug and the guide rodso as to anchor the members firmly in position.

The guide rod 9 preferably has a polygonal cross section and; a slide 11is mounted for longitudinal movement thereon, the

downward movement of the slide being limited by means of a nut12 whichis threaded upon the lower end of the guide rod; Surrounding the uiderod 9 and interposed between the base of the socket opening 2 and theslide 11 is a coil spring 13, the said coil spring normally forcing'theslide 111 downwardly to the lower limit of' its-movement so as to holdthe tongs yield.

ingly'in operative position. The tongs in- .clude'a pair, of-wedgeshaped jaws 14 which with the teeth 14*, while the outer faces thereofarejadapted to slide upon theinclined side walls 7 VVhenthe drill rodgrab is dropped into an oil well, the upper end of the broken. drill rodor tool 16 which'it is desired to engage will enter the socket opening'2 and engage the wedge shaped jaws 14 These jaws '14 may slide upwardlya slight amount upon the inclined side walls 7 to admit of the member 16being received between the same, although when the socket 1 is pulledupwardly, the jaws 14 will slide downwardly upon the inclined sidewalls7 and be thereby drawn into a firm engagement with the member 16.

It not infrequently happens that the tool or member 16 is so firmlywedged'or anchored within the oil well as to successfully resist allefforts to withdraw the same by means of the socket, and'insuchinstances it is .very desirable that some means be provided whereby the'socket or grab can be disengaged from the member 16. In the resentinstance the spring arms 15 are loosely connected at an intermediatepoint in-their length by means of the transverse pin 17 which providesan abutment for engagement with the upper end of the broken drill rodortool 16 when the socket member 1- 'is pushed downwardly instead of beingdrawn upwardly. The guide rod 9 is also formed with a transverse opening18 within which a pair of spring detents 19 are mounted. These detents19 diverge outwardly and upwardly and are normally forced outwardly intoan operative position by means of a sp ring.20. It will thus be obviousthat by forcing the socket member 1 downwardly and bringing the abutmentor transverse pin 17 into engagement with the upper end of the member ortool 16, the tongs can be moved upwardly within the socket against the,action of the spring 13 until the sllde 11 isengaged by the detents 19,as indicated by Figs. 2' and 5. v, The slide 11 and jaws 14 arethenlocked in araised and inoperative position such as admits of thegrab being readily well. With this construction it will be obvious thatthe broken drill rod or tool can be engaged by the effort made todislodge the same, although should it be impossible to dislodge the toolthe grab can be readily disengaged therefrom by pushing the samedownwardlyuntil the tongs are-locked in an inoperatlve position. Thewedge shaped jaws 14 are detachand opposed facesreleased and withdrawnfrom the drill rod grab and anvarious sizes of jaws can-be mountedwithin the socket, according to the nature of the work to be performed.

Any suitable manner of connecting the v jaws to the springs 14 may beemployed,

instance the said are shown as constructed with 14 into which the endsofthe although in the present jaws 14 sockets springs 15 are fitted,suitable rivets 'or fastening members 15* being utilized for retainingthe extremities of the springs in the sockets.

' Having thus described the invention, what we claim as new and desireto secure by Let'- ters Patent, is

1. A drill rod grab including a socket, a guide rod projecting into thesocket, a slide mounted upon the guide rod, tongs carried by the slide,yielding means engaging the slide and normally forcing the samedownwardly to hold the tongs in-an operativev position, and a detent onthe guide rod for engagingthe slide to hold the tongs in an inoperativeposition when the slide has been pushed rearwardly against spring.

2. A drill rod grab including a socket, a guide rod projecting into thesocket from the base thereof, a slide mounted upon the guide rod, springarms projecting from the slide, cooperating jaws carried by the springarms, a spring surrounding the guide rod and engaging the slide fornormally moving the same outwardly to hold the jaws in operativeposition, and a detent upon the guide rod for engaging the slide to holdthe jaws in an inoperative position when the slide has been movedrearwardly against the action of the spring.

3. A drill. rod grab including a socket, a guide member projecting intothe socket from the base thereof, a slide mounted upon the guiderod,spring arms projecting from the slide, cooperating aws carried by thespring arms, a spring surrounding the guide rod and normally forcin theslide. downwardly to hold the jaws in operative position, an abutinentupon the spring arms for engagement with the member being operated uponto force the slide and jaws upwardly against the action of the spring,and a detent upon the slide to hold the members in an inoperativeposition when the slide has thus been moved upwardly upon the guide rod.

4. A drill rod grab including a socket, a guide member projecting intothe socket from the base thereof, a slide mounted upon the guide rod, apair ofspring arms projecting from the slide, cooperating jaws carriedby the spring arms, a cross pin loosely connecting the spring arms, aspring engaging the slide and normally moving the same downwardly tohold the jaws yieldingly a. 'nmmfivp. nosition. the before mentionedtheaction of the withp the guide rod for engaging transverse pin beingadapted to engage the member belng fished for to force the jaws upwardlyand move the slide upwardly upon the guide rod, and a detent upon the i5 guide rod for engaging the slide to'lock the members in an inoperativeposition when the slide has thus been moved up Ward-1y upon the guiderod.

5. A drill rod grab including a socket 10 member provided with a socketopening and ing its upper end fitted within the plug, a locking pinextending transversely through the plug and guide rod, a slide mountedupon the guide rod, tongs carried by the slide, and means engaging theslide for nor- 20 mally moving the same downwardly to hold the tongs inoperative position.

In testimony whereof we afiix oursignatures 1n presence of twowitnesses.

"WILLIAM S. BRUMMETT.

LAMECH S. METZ.

Witnesses BUEL GAILBRATH, LOUIS GEORGE.

